Finding the Fourth Proportional to 12,189.16, 16,849.38 and 10,875.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189.16 : 16,849.38 = 10,875.88 : x
2. Step 2: Convert to fraction form
   12,189.16/16,849.38 = 10,875.88/x
3. Step 3: Cross multiply
   12,189.16x = 16,849.38 × 10,875.88
4. Step 4: Simplify right side
   12,189.16x = 183,251,834.95
5. Step 5: Solve for x
   x = 183,251,834.95/12,189.16
6. Step 6: Final answer
   x = 15,034.00